Fork seal replacement

I tried the 39 11 52's as well, they failed spectacularly at Canowindra, spewing oil all over my brake caliper and disk, clean tubes, no discernible fork bush movement, may have just been the quality of the seals?
Tony.

had no problems using 40x52 seals, tho i try to buy nok ones made in japan.

I tried the 39 11 52's as well-they do seem tight but I have no time on it yet. Hopefully they complement the rebuilt Ohlins.

"they failed spectacularly at Canowindra" interesting....plenty of lube in the seals??

Lots of lube on assembly, loads of lube passing the seals on Sunday!
Like I said though, likely the quality of the seals, I'll check the brand when I replace them.
Tony.

Ordered these for my 400. Should arrive this week! Getting close now!

Cheapest fork seal driver out there:



1 1/4" PVC pipe from Lowes. Less than 3 bucks and it works great.

how good is that ...which end do you use????

thats how i install them..but i use a cut off piece of schedule 40 that is just longer than the compressed fork tube. different approach using a tee like that..

Look closely at the outside diameter of the seals there should be a little raised bit sorta like a half "o" ring.
Have bought ordinary seals from the bearing supplier that did not have this little thing on them.
Did not stay in.

Either big end worked great for 40mm seals. I use a dead blow hammer to firmly smack the high location to drive them in. The PVC is thick enough that it didn't show any damage. Even if it did, the replacement is cheap!

funny we should mention seals, my rhs seal went yesterday bike has sat for a long time so its to be expected

Great tip! I'll be stripping them down in the next couple of days so I'll have a good look at them. The worst part is, I used the same seals in the 250 so I'll be doing it twice.
Tony.

rode it today and its stopped leaking the big drop off at broadford mx track fixed it right up near fixed me up

Been following this thread for a while and am looking for fork seals for 35mm Husky 78 CR250 forks,had a Honda part# but lost it Any suggestions?
Thanks Bill

see what phil at husqvarnaparts has on offer?

I believe some RM85 forks are the same size.

I have fitted the 39mm seals in my bike and raced it twice now with no issues.

Previously I was running new bushes and brand new 'correct' seals that still leaked immed.

These are the offending seals, anyone recognise them?

The only branding I can see is RSA and a tiny logo the looks like Ats I think.